Proof of Code Practice

Introduction

Welcome to Proof of Code!

Proof of Code is a free crypto coding competition with weekly prize pools, focusing initially on Solidity problems.

Hosted by BVM, the leading Rollup-As-A-Service platform on Bitcoin, allowing anyone to launch their own blockchains on Bitcoin at low cost!

More info about Proof of Code: BVMPoC

Register

To register for Proof Of Code, please sign in at BVMPoC.

Solve problems

To solve problems, follow these steps:

Step 1: Clone the Repository

Clone this repository using the command:

git clone https://github.com/TrustlessComputer/poc-practice.git

Step 2: Install Dependencies

Navigate to the project directory and install the required dependencies:

cd poc-practice
npm install 

Note: This repository requires node.js version 20.11.1 or higher.

Step 3: Create a wallet

Go to BVMPoC.

Click Sign in using your Twitter or Gmail account.

Export your private key from the website.

Step 4: Set Up Your Private Key

Create a .env file in the root directory of the project and add your private key as follows:

ZKNET_DEPLOYER_PRIVATE_KEY=YOUR_PRIVATE_KEY

Set up your username

To set your username, run the following command:

npx hardhat set-username --username YOUR_USERNAME

Step 5: Solve the Problem

Each problem is located in its own folder. For example, the problem APlusB can be found in the APlusB folder. The problem must be solved using Solidity.

For the APlusB problem, you will find two files: APlusB.sol and IAPlusB.sol. To solve the APlusB problem, modify the solve function in APlusB.sol.

Note: Please do not modify the getProblemName or getProblemID functions.

Step 6: Compile Your Solution

To compile your solution, run the following command:

npx hardhat compile

Step 7: Deploy Your Solution to BVM Chain

To deploy your solution, run the deployment script with the following command:

npx hardhat deploy --problem-name PROBLEM_NAME

The --problem-name parameter means the problem name you want to deploy, and it is required.

For example, to deploy the APlusB solution, run the following command:

npx hardhat deploy --problem-name APlusB

Note: The competition and practice sessions are completely free to join, you won’t have to pay anything. All gas fees are automatically covered in the backend.

Step 8: Test Your Solution

To test your solution, you must modify the input.json file with the input data you want to test. For example, to test the APlusB solution, modify the input.json file as follows:

{
  "a": 2,
  "b": 3
}

Then, run the following command to test your solution:

npx hardhat testSolution --tx <TRANSACTION_HASH>

Note: The --tx parameter means the transaction hash of the contract deployment, and it is required. This parameter can be found after deploying the contract solution in step 7.

Step 9: Submit Your Solution

You can submit your solution by using the following command:

npx hardhat submit --tx <TRANSACTION_HASH>

Note: The --tx parameter means the transaction hash of the contract deployment, and it is required. This parameter can be found after deploying the contract solution in step 7.

Need help?

Join the Proof of Code community: PoC Community.